From 483b954dff83b86877184718acdd66533cb694ac Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Sun, 30 Jan 2022 02:04:24 +0100
Subject: code cleanup and fixes mainly rbuf

---
 ecp/src/msgq.c | 68 +++++++++++++++++++++++++++++++---------------------------
 1 file changed, 36 insertions(+), 32 deletions(-)

(limited to 'ecp/src/msgq.c')

diff --git a/ecp/src/msgq.c b/ecp/src/msgq.c
index 61c7b02..8f81d8a 100644
--- a/ecp/src/msgq.c
+++ b/ecp/src/msgq.c
@@ -4,9 +4,6 @@
 
 #include <sys/time.h>
 
-#define MIN(a,b) (((a)<(b))?(a):(b))
-#define MAX(a,b) (((a)>(b))?(a):(b))
-
 #define MSG_IDX_MASK(idx)    ((idx) & ((ECP_MSGQ_MAX_MSG) - 1))
 
 static struct timespec *abstime_ts(struct timespec *ts, ecp_cts_t msec) {
@@ -25,8 +22,6 @@ int ecp_conn_msgq_create(ECPConnMsgQ *msgq) {
     int i;
     int rv;
 
-    if (msgq == NULL) return ECP_ERR;
-
     memset(msgq, 0, sizeof(ECPConnMsgQ));
 
     rv = pthread_mutex_init(&msgq->mutex, NULL);
@@ -51,8 +46,6 @@ int ecp_conn_msgq_create(ECPConnMsgQ *msgq) {
 void ecp_conn_msgq_destroy(ECPConnMsgQ *msgq) {
     int i;
 
-    if (msgq == NULL) return;
-
     for (i=0; i<ECP_MAX_MTYPE; i++) {
         pthread_cond_destroy(&msgq->cond[i]);
     }
@@ -60,8 +53,6 @@ void ecp_conn_msgq_destroy(ECPConnMsgQ *msgq) {
 }
 
 int ecp_conn_msgq_start(ECPConnMsgQ *msgq, ecp_seq_t seq) {
-    if (msgq == NULL) return ECP_ERR;
-
     msgq->seq_max = seq;
     msgq->seq_start = seq + 1;
 
@@ -70,13 +61,11 @@ int ecp_conn_msgq_start(ECPConnMsgQ *msgq, ecp_seq_t seq) {
 
 int ecp_conn_msgq_push(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype) {
     ECPRBRecv *buf = conn->rbuf.recv;
-    ECPConnMsgQ *msgq = buf ? &buf->msgq : NULL;
+    ECPConnMsgQ *msgq = &buf->msgq;
 
-    mtype &= ECP_MTYPE_MASK;
-    if (msgq == NULL) return ECP_ERR;
     if (mtype >= ECP_MAX_MTYPE) return ECP_ERR_MAX_MTYPE;
 
-    if ((unsigned short)(msgq->idx_w[mtype] - msgq->idx_r[mtype]) == ECP_MSGQ_MAX_MSG) return ECP_MSGQ_ERR_MAX_MSG;
+    if ((unsigned short)(msgq->idx_w[mtype] - msgq->idx_r[mtype]) == ECP_MSGQ_MAX_MSG) return ECP_ERR_FULL;
     if (msgq->idx_w[mtype] == msgq->idx_r[mtype]) pthread_cond_signal(&msgq->cond[mtype]);
 
     msgq->seq_msg[mtype][MSG_IDX_MASK(msgq->idx_w[mtype])] = seq;
@@ -89,13 +78,15 @@ int ecp_conn_msgq_push(ECPConnection *conn, ecp_seq_t seq, unsigned char mtype)
 
 ssize_t ecp_conn_msgq_pop(ECPConnection *conn, unsigned char mtype, unsigned char *msg, size_t msg_size, ecp_cts_t timeout) {
     ECPRBRecv *buf = conn->rbuf.recv;
-    ECPConnMsgQ *msgq = buf ? &buf->msgq : NULL;
+    ECPConnMsgQ *msgq = &buf->msgq;
+    ECPRBuffer *rbuf = &buf->rbuf;
     ecp_seq_t seq;
-    ecp_seq_t seq_offset;
-    unsigned int idx;
+    unsigned char *msg_buf;
+    unsigned char *content;
+    unsigned short idx;
+    int _rv;
     ssize_t rv;
 
-    if (msgq == NULL) return ECP_ERR;
     if (mtype >= ECP_MAX_MTYPE) return ECP_ERR_MAX_MTYPE;
 
     if (msgq->idx_r[mtype] == msgq->idx_w[mtype]) {
@@ -103,35 +94,48 @@ ssize_t ecp_conn_msgq_pop(ECPConnection *conn, unsigned char mtype, unsigned cha
             pthread_cond_wait(&msgq->cond[mtype], &msgq->mutex);
         } else {
             struct timespec ts;
-            int _rv;
 
             _rv = pthread_cond_timedwait(&msgq->cond[mtype], &msgq->mutex, abstime_ts(&ts, timeout));
             if (_rv) return ECP_ERR_TIMEOUT;
         }
     }
-
     seq = msgq->seq_msg[mtype][MSG_IDX_MASK(msgq->idx_r[mtype])];
-    seq_offset = seq - buf->rbuf.seq_start;
-    idx = ECP_RBUF_IDX_MASK(buf->rbuf.msg_start + seq_offset, buf->rbuf.msg_size);
 
-    msgq->idx_r[mtype]++;
-    buf->rbuf.msg[idx].flags &= ~ECP_RBUF_FLAG_IN_MSGQ;
+    _rv = _ecp_rbuf_msg_idx(rbuf, seq, &idx);
+    if (_rv) return ECP_ERR;
 
+    msg_buf = rbuf->arr.msg[idx].buf;
+    rv = rbuf->arr.msg[idx].size;
+
+    content = ecp_msg_get_content(msg_buf, rv);
+    if (content == NULL) {
+        rv = ECP_ERR;
+        goto msgq_pop_fin;
+    }
+
+    rv -= content - msg_buf;
+    if (msg_size < rv) {
+        rv = ECP_ERR_FULL;
+        goto msgq_pop_fin;
+    }
+
+    memcpy(msg, content, rv);
+
+    rbuf->arr.msg[idx].flags &= ~ECP_RBUF_FLAG_IN_MSGQ;
+    // if (rbuf->arr.msg[idx].flags == 0);
+
+msgq_pop_fin:
+    msgq->idx_r[mtype]++;
     if (msgq->seq_start == seq) {
-        int i, _idx = idx;
-        ecp_seq_t msg_cnt = msgq->seq_max - msgq->seq_start + 1;
+        int i;
+        unsigned short msg_cnt = msgq->seq_max - msgq->seq_start + 1;
 
         for (i=0; i<msg_cnt; i++) {
-            if (buf->rbuf.msg[_idx].flags & ECP_RBUF_FLAG_IN_MSGQ) break;
-            _idx = ECP_RBUF_IDX_MASK(_idx + 1, buf->rbuf.msg_size);
+            if (rbuf->arr.msg[idx].flags & ECP_RBUF_FLAG_IN_MSGQ) break;
+            idx = ECP_RBUF_IDX_MASK(idx + 1, rbuf->arr_size);
         }
         msgq->seq_start += i;
     }
-    rv = buf->rbuf.msg[idx].size - 1;
-    if (rv >= 0) {
-        rv = MIN(msg_size, rv);
-        memcpy(msg, buf->rbuf.msg[idx].msg + 1, rv);
-    }
 
     return rv;
 }
-- 
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